gentoo-overlay/media-libs/libao/files/libao-1.2.2-automagic_sndio_oss.patch

From f1ef6b4b11080a98d622b6a6c657be5a3a9aae2f Mon Sep 17 00:00:00 2001
From: "Haelwenn (lanodan) Monnier" <contact@hacktivis.me>
Date: Tue, 15 Jun 2021 08:41:08 +0200
Subject: [PATCH] configure.ac: Put sndio and OSS behind AC_ARG_ENABLE

This allows to avoid automagic dependencies
---
 configure.ac | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/configure.ac b/configure.ac
index 0e53752..2f34123 100644
--- a/configure.ac
+++ b/configure.ac
@@ -266,8 +266,11 @@ AM_CONDITIONAL(HAVE_ESD,test "x$have_esd" = xyes)
 dnl Check for OSS
 
 have_oss="no";
-AC_CHECK_HEADERS(sys/soundcard.h, have_oss=yes)
-AC_CHECK_HEADERS(machine/soundcard.h, have_oss=yes)
+AC_ARG_ENABLE(oss, [  --disable-oss          disable OSS output plugin ])
+if test "x$enable_oss" != "xno"; then
+  AC_CHECK_HEADERS(sys/soundcard.h, have_oss=yes)
+  AC_CHECK_HEADERS(machine/soundcard.h, have_oss=yes)
+fi
 AM_CONDITIONAL(HAVE_OSS,test "${have_oss}" = "yes")
 
 
@@ -321,7 +324,10 @@ AM_CONDITIONAL(HAVE_SUN_AUDIO,test "${have_sun}" = yes)
 dnl Check for libsndio audio
 
 have_sndio="no";
-AC_CHECK_HEADERS(sndio.h, have_sndio=yes)
+AC_ARG_ENABLE(sndio, [  --disable-sndio        disable sndio output plugin ])
+if test "x$enable_sndio" != "xno"; then
+  AC_CHECK_HEADERS(sndio.h, have_sndio=yes)
+fi
 AM_CONDITIONAL(HAVE_SNDIO_AUDIO,test "${have_sndio}" = yes)
 
 dnl Check for roaraudio
-- 
2.31.1